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/**
* @file llwindowmesaheadless.cpp
* @brief Platform-dependent implementation of llwindow
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "indra_constants.h"
#include "llwindowmesaheadless.h"
#include "llgl.h"
#define MESA_CHANNEL_TYPE GL_UNSIGNED_SHORT
#define MESA_CHANNEL_SIZE 2
U16 *gMesaBuffer = NULL;
//
// LLWindowMesaHeadless
//
LLWindowMesaHeadless::LLWindowMesaHeadless(LLWindowCallbacks* callbacks,
const std::string& title, const std::string& name, S32 x, S32 y, S32 width, S32 height,
U32 flags, BOOL fullscreen, BOOL clearBg,
BOOL disable_vsync, BOOL use_gl, BOOL ignore_pixel_depth)
: LLWindow(callbacks, fullscreen, flags)
{
if (use_gl)
{
llinfos << "MESA Init" << llendl;
mMesaContext = OSMesaCreateContextExt( GL_RGBA, 32, 0, 0, NULL );
/* Allocate the image buffer */
mMesaBuffer = new unsigned char [width * height * 4 * MESA_CHANNEL_SIZE];
llassert(mMesaBuffer);
gMesaBuffer = (U16*)mMesaBuffer;
/* Bind the buffer to the context and make it current */
if (!OSMesaMakeCurrent( mMesaContext, mMesaBuffer, MESA_CHANNEL_TYPE, width, height ))
{
llerrs << "MESA: OSMesaMakeCurrent failed!" << llendl;
}
llverify(gGLManager.initGL());
}
}
LLWindowMesaHeadless::~LLWindowMesaHeadless()
{
delete mMesaBuffer;
OSMesaDestroyContext( mMesaContext );
}
void LLWindowMesaHeadless::swapBuffers()
{
glFinish();
}
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